gulp-replaces Gulp plugin for replace strings in one pipe in files. Install $ npm i gulp-replaces -D# or $ yarn add gulp-replaces -D Usage // gulpfile.jsconst gulp = require('gulp');const replaces = require('gulp-replaces'); gulp.task('default', () => { return gulp .src('./src/main.js') .pipe(replaces({ 'process.env.NODE_ENV': JSON.stringify('development'), 'process.env.PORT': 3000, })) .pipe(gulp.dest('./dist'));});